Roofing.



IUUI UUIVII Uul l lunu,

COATING OR PLASTIC.

1. SQMCGEHE, A f looms. `f

IAPPLSCKTIQI FILED HAY I2. lll. Patented layl, 1917.

UNITED STATES PATENT OFFICE.

JOHN SIMEON HGGEHEE, 0F PALMEBSVILLE, TENNESSEE, ASSIGNOR 0F ONE-HALF T0ALBERT H. BRAUN, OF PALMERSVILLE, TENNESSEE.

MOIFIN G.

Specification of Letters Patent.

Patented May 15, 1917.

To all whom it may concern:

Be it known that I, JOHN S. MCGEHEE, a citizen of the United States,residing at Palmersville, in the county of VVeakley and State ofTennessee, have invented a new and useful Roofing, of which thefollowing is a specification.

This invention has reference to roofing, and its object is to provide asubstitute for shingles and other rooting which may be applied with atrowel and which, moreover, is fire and waterproof.

The roofing while intended particularly for a roof covering, may beapplied to side walls, or wherever al covering to which the rooting isadapted may be employed. However, for the sake of simplicity ofdescription the invention will be referred to as a roofing withoutthereby limiting the uses of the invention to such particular purpose.

In accordance with the present invention a suitable foundation of lathsor strips is provided upon supporting timbers, and such strips arecovered by a ne mesh wire screen which in turn is covered by a coarsemesh wire screen, and to the wire screening there is applied acomposition of materials mixed in suitable proportions, and in acondition permitting the application by means of a trowel or othersuitable tool. The composition dries hard and firm, hardening slowlywith freedom from cracking, and when completed is'both weather andireproof with a smooth, substantially glazed surface.

The invention will be best understood from a consideration of thefollowing detailed description, taken in connection with theaccompanying drawing forming part of this specication, with the furtherunderstanding that while the drawings show a practical form of theinvention, the latter is not conlined to any strict conformity with theshowing of the drawings, but may be changed and modied as long as thechanges and modifications come within the scope of the appended claims.

In the drawing, the figure is a perspective view to a certain extentschematically representing a small section of a roof provided with theroofing of the present invention.

In carrying out the invention, the supports to which the roofing is tobe applied, which supports are not shown in the draw ing, are coveredwith strips or laths 1 suitably spaced apart, say, about half an inch,so that there is no buckling of the laths should the latter swell fromany cause. Covering the laths is a layer 2 of ne mesh wire screen heldto the laths by staples 3 or otherwise, and covering the screen 2 is alayer of wire screen 4 which may be of about half inch mesh, althou hany particular mesh is not obligatory. he screen covering 4 is held inplace by staples 5 or in any other suitable way. The purpose of thescreen covering 4 is to provide key seats for anchoring a layer 6, of acomposition to be described, to the basic portion of the roof covering,while the fine mesh wire screen 2 prevents passage of the composition tothe spaces between the laths, and so far as any of the composition 6which may reach the wire screen 2 is concerned, the latter will act asan anchoring means therefor.

The composition covering 6 is applied in a layer of, say, half an inchin thickness, and in strips of, say, about two feet wide extending fromthe eaves to the ridge or comb of the roof, .each strip being separatedfrom its neighbor by a space of, say, half an inch, and such a spacebeing indicated at 7 in the drawing.

The composition G is made up of sand, ce-y mfeliPt, red oxid of iron,yellow ocherplastme'i1` o arismfz'alum, granulatedsl'gr dilurmtlienoi'i'g'h water to prm a work`lile plaster capable of being applied tothe basic portion of the roofing with a trowel or other suitable tool.

As an example of the composition, a certain quantity is made up of onehundred pounds of good clean sand, one hundred pounds of goodcemen."o'1i` and one-quarter pounds of red 0x15 of iron one-quarterpound of ello-w o-cer. one pound of builders laster o aris. one ounce ofsalt eter onea e o a um one poun ulated su ar and'mound of sulfur?Twcement, red oxid omher,

x nd ster of Paris are thoroughly mixed y The saltpeter, alum, sugar andsulfur in the quantities 'ven above are dissolved in one gallon ofoiling water and when cool the solution is strainmhen mixed with thefirst-named ingredients with suicient additional water to make a trowelmortar.

The roofing composition is applied in Kmme 106. COMPOSITIONS,

COATING R PLASTIC.

strips as stated, with spaces 7 between the strips until the Whole roofor space to be covered is finished, and then the various strips are keptdamp until thoroughly set, this being accomplished by covering the Wholeroof with sacking and keeping the sacking wet. Then the narrow spaces 7are filled in with the saine composition packed in with a trowel andallowed to set. Finally a suitable quantity of cement is mixed withenough of the solution made up of saltpeter, alum, sugar, sulfur andwater to produce a thin paste, thin enough to be applied to the appliedrooting composition with a brush, and this is then smoothed down with atrowel to fill all erevices and holes and to produce a finishing glazeadding to the appeaiance of the roof. The filling for the space 7 isindicated at 8, and the final brushed-on coating is indicated at 9, thefilling 8 being slightly pointed if desired to produce a suitable ei'ectupon the roof.

The plaster of Paris added to the cement and sand makes the compositionfirmer than when the plaster of Paris is omitted. The red oxid of ironand the yellow ocher serve as coloring matters. The saltpeter is used tokeep the composition from hardening too fast and cracking, and alsoserves as an atmosphere feeder to cause the crystallization of theingredients. The sulfur and other of the ingredients contribute to thegloss, and all the ingredients act to produce a firm and durable rootingfree from liability of crack and thoroughly resistant to Weather conditions.

It will be understood, of course, that the coloring matters Will bevaried in accordance with the color it is desired the rooting shouldhave.

The composition may be made up into shingles, but it is advantageous toapply it as described, for the gutters and valleys may be formed of thecomposition in one piece with and at the same time the roof is produced.

What is claimed is l. A rooting composition comprising sand, cement,plaster of Paris, saltpeter, alum, sugar and sulfur.

2. A roofing composition, comprising sand, cement, plaster of Paris,saltpeter, alum, sugar and sulfur in substantially the parts of onehundred pounds of sand, one

undred pounds of cement, one pound each of plaster of Paris, sugar andsulfur, one ounce of saltpeter, one-half ounce of alum, coloring matterand Water. o

3. A roofing compound consisting of sand, cement, plaster of Paris, redoxid of iron, and yellow ocher mixed dry in substantially theproportions described, a solution of salt: peter, alum, sugar and sulfursubstantially in the proportions described, and Water in sufiicientquantity to make the composition of the consistency of trowel mortar.

4. A compound comprising cement, saltpeter, alum, sugar, sulfur andWater, in substantially the proportions described.

In testimony that I claim the foregoing as my own I have hereto atlixedmy signature in the presence of two Witnesses.

JOHN SIMEON MCGEHEE.

Witnesses:

A. H. BRAUN, C. W. PENTEoosT.

copies ot this patent may be obtained for ve cents each, by addressingthe Commissioner ot Patents, Wilmington, I). 0.

